Pump-jack bearing



May 13 1924.

W. C. DULL PUMP JACK BEARING Filed June 27. 1923 Patented May i3, 1924.

inNiTEo STATES Limi WILLIAM C. BULL, '0F TAFT, CALIFORNIA.

. PUMP-JACK BEARING.

Application led June 27, 1922.v Serial No. 648,035.

To all whom. t may concern:

Be it known that I, WILLIAM C. DULL,

a citizen of the United States, residing at Taft, in the county of Kern,State of California, have invented certain new and useful Improvementsin Pump-Jack Bearings;

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which appertains to make and use the same.

This invention relates to new and useful improvements in pumping jacks,and particularly to bearings therefor.

One object of the invention is to -provide a bearing for a jack of thischaracter which is capable of adjustment longitudinally and transverselyof the base, so that the accurate vertical position of the pump rod maybe accomplished.

Another object is to provide an adjustable bearing of this characterwhich can be easily and quickly adjusted without disconnecting the jackfrom the pump rod.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a top plan view of a pump jack bearing made in accordancewith the present invention.

Figure 2 is a vertical transverse central sectional view on the line 2 2of Figure 1.

Figure 3 is a. vertical longitudinal central sectional view on the line3 3 of Figure 1.

Referring particularly to the accompanying drawing, 10 represents a baseplate which is secured t0 a foundation 11 by means of the bolts orscrews 12. On the upper face of the plate 10 is a longitudinal ange 13.extending the entire length of the base plate. and the transverseflanges 13. connected with the ends of the flange 13, and extendingacross the upper face of the plate. at the ends thereof. Disposed on theupper face of the plate 10, and loosely enclosed by the said fianges, isa bearing block 14, said block being of such dimensions as to bepermitted to move longitudinally and transversely of the base plate.Formed longitudinally in the upper face of the bearing block. andterminating short of the ends thereof, is a transversely conc-avechannel or groove 15, in which is seated the correspond-I ingly shapedbearing shaft 16 of the triangular' pump jack 17. This jack includes thevertical arm 18v and the horizontal arm 19, the former having acable orrod 2O connected to its outer end, for connection with .the main drivingwheel, not shown,

while. the outer end of the arm 19 is con-- nected to the upper end ofthe pump rod 21, which is disposed within the well 22. As is usual, inthis type of pumping device,

the cable or rod 20, by its reciprocations,

ures 1 and'3, and the upper edges ofsaid faces are beveled downwardlyand outwardly, as at 24, so that the horizontal arm 19, of the jack, mayproperly swing on its pivot.

Thel intermediate portion of the longer flange 13 is downwardly andoutwardly inclined for a distance approximately the length of the bevel24, said bevel, as shown at 25.y being in the same plane, orapproximately the same plane as tlie bevelr 24.

In the longer ange 13, adjacent each end of the bevel face 25, is anadjustingbolt or screw 26, the inner end` of which bears against theadjacent vertical side face of the bearing block 14, while similar boltsor screws 27 Yare disposed through the transverse flanges 13 and havetheir inner ends bearing against the vertical end faces of the block 14.Lock nuts 28 are 'disposed on the bolts or screws for maintaining themin their adjusted positions.

It will thus be seen that, when the pump rod 21 is out of verticalalignment, transversely of the well, in the direction longitudinallj7 ofthe base plate, the screws 27 are lturned to move the block 14longitudinally in the proper direction, on the base plate 10. Should thejack be so positioned that the outer end of its arm 19 is too far out ortoo far in, the screws 26 are turned to move the block 14 in the properdirection to bring the outer end of the arm 19 directly above the centerof the well.

From the foregoing it will readily be seen that the proper adjustment ofthe jack, with respect to the well, and pump 'rod7 may be accomplishedwithout the necessity ofdisconnecting the jack from the pump rod, orfrom the operating cable or rod, with the consequent saving ofconsiderable time7 and the accompanying monetary consideration.

lil/*hat is claimed is:

A. pumping jack bearing comprising a base having upsta-nding flanges onthe ends thereof and a longitudinal flange on one side connected withthe end flanges, bolts disposed horizontally vthrough the said flanges,and a block disposed on the base and engaged with the said bolts, saidbase having a longitudinal central channel with the intermediateportions of its side walls upwardly and outwardly beveled, theintermediate portion of the longitudinal flange of the base beingdownwardly and outwardly beveled.

In testimony whereof, I alix my signature, in the presence of twowitnesses:

WILLIAM C. DULL. lVitnesses:

S. B. LAmR'rY, S. R. KERK.

